Quick-response zero-leakage ORC turbine regulating valve

Abstract

The utility model discloses a quick-response zero-leakage ORC turbine regulating valve which comprises a positioning seat and a valve seat, the positioning seat is arranged in the middle of the upper end of the valve seat, the lower end of the positioning seat is in threaded fit with the middle of the upper end of the valve seat, and a limiting seat is arranged outside the positioning seat. A sealing ring is arranged at the position, corresponding to the outer wall of the positioning seat, of the lower end of the interior of the limiting seat, an oil cylinder is fixed to the middle of the upper end of the limiting seat, a valve rod is connected to the lower end of the oil cylinder, a valve element is arranged at the upper end of the interior of the valve seat, a threaded column is fixed to the upper end of the valve element, and the threaded column is in threaded fit with the lower end of the interior of the valve rod; a pressing ring is arranged at the position, corresponding to the outer wall of the valve rod, of the upper end of the interior of the limiting seat, and a water swelling rubber ring is arranged at the lower end of the pressing ring. The valve core is convenient to replace, and the regulating valve is easy to protect and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a fast-response zero-leakage ORC turbine regulating valve. Background Art

[0002] The zero-leakage ORC turbine control valve is a control device used in industrial automation process control. It automatically adjusts to process parameters related to media flow based on control signals from the automation system. This control valve utilizes hydraulic power and features fast response and high precision. Its primary application is to achieve automated and intelligent control, improve production efficiency, reduce energy consumption, and ensure production safety.

[0003] The turbine control valve in the existing technology has some disadvantages. First, wear or corrosion of the valve core will cause the control valve to fail, which is inconvenient to replace the valve core and affects the use effect. Second, there is no detachable protective structure on the control valve, which is not easy to protect and maintain the control valve. Utility Model Content

[0004] The purpose of the utility model is to provide a fast-response zero-leakage ORC turbine regulating valve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a fast-response zero-leakage ORC turbine regulating valve, comprising a locating seat and a valve seat, the locating seat being arranged in the middle of the upper end of the valve seat, and the lower end of the locating seat being engaged with the middle thread of the upper end of the valve seat, a limiting seat being arranged on the outside of the locating seat, and a sealing ring being arranged on the outer wall of the locating seat at the lower end of the interior of the limiting seat corresponding to the lower end, an oil cylinder being fixed in the middle of the upper end of the limiting seat, and a valve stem being connected to the lower end of the oil cylinder, a valve core being arranged on the upper end of the interior of the valve seat, and a threaded column being fixed on the upper end of the valve core, and the threaded column being engaged with the lower end thread of the interior of the valve stem, which facilitates the installation of the valve core on the lower end of the locating seat.

[0006] Preferably, a clamping ring is provided at the outer wall of the valve stem corresponding to the upper end of the inner part of the limit seat, and a water-expanding rubber ring is provided at the lower end of the clamping ring. The water-expanding rubber ring can prevent poor sealing when exposed to water, and the sealing ring can further improve the sealing of the positioning seat and the limit seat.

[0007] Preferably, a protective cover is provided on the outside of the upper end of the limiting seat, and plug blocks are fixed on both sides of the lower end of the protective cover.

[0008] Preferably, both ends of the valve seat are internally provided with a give-way bin, and a pull rod is internally provided with the give-way bin, and a pull block and a clamping block are respectively fixed to both ends of the pull rod, and a spring is connected between one end of the clamping block and one end of the inner wall of the give-way bin, which is convenient for the protective cover to be installed on the outside of the limit seat.

[0009] Preferably, a slot is provided at one end of the valve seat corresponding to the yielding chamber, and the slot is clamped with the inserting block, and the inserting block is clamped with the clamping block.

[0010] Preferably, the front and rear ends of the inner wall of the valve seat are provided with guide grooves, and the middle of the inner part of the valve seat is provided with an adjustment groove corresponding to the lower part of the valve core. The valve seat corresponds to the guide groove, which limits the guide block and facilitates the stable lifting and lowering of the valve core.

[0011] Preferably, guide blocks are provided at the front end and the rear end of the valve core, and the guide blocks are slidably connected to the guide grooves.

[0012] Preferably, a through hole 1 is provided at one end of the valve seat corresponding to the adjustment groove, and a through hole 2 is provided at the other end of the valve seat corresponding to the adjustment groove. The oil cylinder is extended and retracted to drive the valve stem to rise and fall, and then drive the valve core to rise and fall to adjust the flow cross-sectional area of ​​the adjustment groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are: easy replacement of the valve core, easy protection and maintenance of the regulating valve;

[0014] (1) Place the limit seat on the upper part of the valve seat, then insert the positioning seat into the outside of the valve stem, screw the threaded column into the inside of the positioning seat, and then screw the positioning seat into the upper end of the valve seat, which is conducive to the installation of the valve core on the lower end of the positioning seat. Subsequently, the clamping ring can position the water-expanding rubber ring. The water-expanding rubber ring can prevent poor sealing when exposed to water. The sealing ring can further improve the sealing performance of the positioning seat and the limit seat, making it easier to replace the valve core.

[0015] (2) The pull block can be pulled to the outside of both sides respectively, which drives the pull rod to move outward and the spring to compress, thereby driving the card block to move outward to make way for the plug block. The protective cover can be put on the outside of the limit seat so that the plug block can be inserted into the slot. Then the pull block can be released and the card block can be reset through the pull rod so that the card block can be inserted into the plug block. This is conducive to the installation of the protective cover on the outside of the limit seat, which is easy to protect and maintain the regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 3 For the utility model Figure 1 A in the middle is an enlarged structural diagram;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the limit seat and the sealing ring of the utility model;

[0020] Figure 5This is a schematic diagram of the oil cylinder and valve core structure of the utility model;

[0021] In the figure: 1. Cylinder; 2. Protective cover; 3. Clamping ring; 4. Water-swelling rubber ring; 5. Positioning seat; 6. Sealing ring; 7. Limit seat; 8. Giving compartment; 9. Spring; 10. Pull block; 11. Valve seat; 12. Insert block; 13. Through hole 1; 14. Guide block; 15. Valve core; 16. Guide groove; 17. Adjusting groove; 18. Through hole 2; 19. Block; 20. Slot; 21. Pull rod; 22. Valve stem; 23. Threaded column. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-5 The utility model provides an embodiment of a fast-response zero-leakage ORC turbine regulating valve, comprising a positioning seat 5 and a valve seat 11. The positioning seat 5 is arranged in the middle of the upper end of the valve seat 11, and the lower end of the positioning seat 5 is engaged with the middle thread of the upper end of the valve seat 11. A limit seat 7 is provided on the outside of the positioning seat 5, and a sealing ring 6 is provided at the lower end of the inner portion of the limit seat 7 corresponding to the outer wall of the positioning seat 5. An oil cylinder 1 is fixed in the middle of the upper end of the limit seat 7, and the lower end of the oil cylinder 1 is connected to the valve stem 22. A valve core 15 is provided at the upper end of the inner portion of the valve seat 11, and a threaded column 23 is fixed to the upper end of the valve core 15, and the threaded column 23 is engaged with the lower end thread of the inner portion of the valve stem 22.

[0024] When in use, place the limit seat 7 on the upper part of the valve seat 11, then insert the positioning seat 5 into the outside of the valve stem 22, screw the threaded column 23 into the inside of the positioning seat 5, and then screw the positioning seat 5 into the upper end of the valve seat 11, which is conducive to the installation of the valve core 15 on the lower end of the positioning seat 5;

[0025] An adjusting groove 17 is provided in the middle of the valve seat 11 corresponding to the lower portion of the valve core 15 , a through hole 13 is provided at one end of the valve seat 11 corresponding to the adjusting groove 17 , and a through hole 2 18 is provided at the other end of the valve seat 11 corresponding to the adjusting groove 17 ;

[0026] When in use, the oil cylinder 1 extends and contracts, driving the valve stem 22 to move up and down, and then through the threaded column 23, driving the valve core 15 to move up and down, adjusting the flow cross-sectional area of ​​the regulating groove 17, which is conducive to adjusting the medium flow;

[0027] A clamping ring 3 is provided at the upper end of the inner portion of the limiting seat 7 corresponding to the outer wall of the valve stem 22, and a water-expandable rubber ring 4 is provided at the lower end of the clamping ring 3;

[0028] When in use, the compression ring 3 can position the water-swelling rubber ring 4, which can prevent poor sealing when exposed to water. The sealing ring 6 can further improve the sealing performance of the positioning seat 5 and the limiting seat 7;

[0029] A clearance chamber 8 is provided inside both ends of the valve seat 11, and a pull rod 21 is provided inside the clearance chamber 8. A pull block 10 and a clamping block 19 are fixed to both ends of the pull rod 21, and a spring 9 is connected between one end of the clamping block 19 and one end of the inner wall of the clearance chamber 8.

[0030] When in use, the pull block 10 can be pulled outward on both sides, driving the pull rod 21 to move outward, compressing the spring 9, and then driving the clamping block 19 to move outward to make way for the inserting block 12;

[0031] A protective cover 2 is provided on the outside of the upper end of the limit seat 7, and plug blocks 12 are fixed on both sides of the lower end of the protective cover 2. A slot 20 is provided on the end of the valve seat 11 corresponding to the clearance chamber 8, and the slot 20 is clamped with the plug block 12, and the plug block 12 is clamped with the clamping block 19;

[0032] When in use, the protective cover 2 can be put on the outside of the limit seat 7, so that the insert block 12 is inserted into the slot 20, and then the pull block 10 is released, and the pull rod 21 is used to drive the clamping block 19 to reset, so that the clamping block 19 is inserted into the insert block 12, which facilitates the installation of the protective cover 2 on the outside of the limit seat 7;

[0033] The front and rear ends of the inner wall of the valve seat 11 are both provided with guide grooves 16, and the front and rear ends of the valve core 15 are both provided with guide blocks 14, and the guide blocks 14 are slidably connected to the guide grooves 16;

[0034] When in use, the valve seat 11 corresponds to the guide groove 16, limiting the guide block 14, which is conducive to the stable lifting of the valve core 15;

[0035] When the embodiment of the present application is in use: first, place the limit seat 7 on the upper part of the valve seat 11, then insert the positioning seat 5 into the outside of the valve stem 22, screw the threaded column 23 into the inside of the positioning seat 5, and then screw the positioning seat 5 into the upper end of the valve seat 11, which is conducive to the valve core 15 being installed at the lower end of the positioning seat 5. Subsequently, the clamping ring 3 can position the water-expandable rubber ring 4, which can prevent poor sealing when exposed to water. The sealing ring 6 can further improve the sealing between the positioning seat 5 and the limit seat 7. Afterwards, the oil cylinder 1 is extended and retracted to drive the valve stem 22 to rise and fall, and then the valve core 15 is driven to rise and fall through the threaded column 23 to adjust the flow cutoff of the regulating groove 17. The area is conducive to regulating the medium flow, and the valve seat 11 corresponds to the guide groove 16, which limits the guide block 14, which is conducive to the stable lifting of the valve core 15. In addition, the pull block 10 can be pulled to the outside of both sides respectively, driving the pull rod 21 to move outward and the spring 9 to compress, thereby driving the card block 19 to move outward to make way for the plug block 12. The protective cover 2 can be put on the outside of the limit seat 7 so that the plug block 12 is inserted into the slot 20, and then the pull block 10 is released, and the card block 19 is driven to reset through the pull rod 21, so that the card block 19 is inserted into the plug block 12, which is conducive to the installation of the protective cover 2 on the outside of the limit seat 7. In summary, the regulating valve is convenient for replacing the valve core and easy to protect and maintain the regulating valve.

Claims

1. A fast response zero leakage ORC turbine regulating valve, characterized by: The invention comprises a positioning seat (5) and a valve seat (11), wherein the positioning seat (5) is arranged in the middle of the upper end of the valve seat (11), and the lower end of the positioning seat (5) is matched with the middle thread of the upper end of the valve seat (11), a limiting seat (7) is arranged outside the positioning seat (5), and a sealing ring (6) is arranged at the lower end of the inner part of the limiting seat (7) corresponding to the outer wall of the positioning seat (5), an oil cylinder (1) is fixed in the middle of the upper end of the limiting seat (7), and the lower end of the oil cylinder (1) is connected to the valve stem (22), a valve core (15) is arranged at the upper end of the inner part of the valve seat (11), and a threaded column (23) is fixed to the upper end of the valve core (15), and the threaded column (23) is matched with the lower end thread of the inner part of the valve stem (22).

2. The fast-response zero-leakage ORC turbine regulating valve according to claim 1, characterized in that: A clamping ring (3) is provided at the upper end of the interior of the limiting seat (7) corresponding to the outer wall of the valve stem (22), and a water-expandable rubber ring (4) is provided at the lower end of the clamping ring (3).

3. The fast-response zero-leakage ORC turbine regulating valve according to claim 2, characterized in that: A protective cover (2) is provided on the outside of the upper end of the limiting seat (7), and plug blocks (12) are fixed on both sides of the lower end of the protective cover (2).

4. The fast-response zero-leakage ORC turbine regulating valve according to claim 1, characterized in that: A clearance chamber (8) is provided inside both ends of the valve seat (11), and a pull rod (21) is provided inside the clearance chamber (8). A pull block (10) and a clamping block (19) are fixed to both ends of the pull rod (21), and a spring (9) is connected between one end of the clamping block (19) and one end of the inner wall of the clearance chamber (8).

5. The fast-response zero-leakage ORC turbine regulating valve according to claim 4, characterized in that: A slot (20) is provided at one end of the valve seat (11) corresponding to the clearance chamber (8), and the slot (20) is engaged with the insert block (12), and the insert block (12) is engaged with the clamping block (19).

6. The fast-response zero-leakage ORC turbine regulating valve according to claim 5, characterized in that: The front and rear ends of the inner wall of the valve seat (11) are both provided with guide grooves (16), and the middle portion of the inner portion of the valve seat (11) corresponding to the lower portion of the valve core (15) is provided with an adjustment groove (17).

7. The fast-response zero-leakage ORC turbine regulating valve according to claim 6, characterized in that: A guide block (14) is provided at the front end and the rear end of the valve core (15), and the guide block (14) is slidably connected to the guide groove (16).

8. The fast-response zero-leakage ORC turbine regulating valve according to claim 6, characterized in that: A through hole 1 (13) is provided at one end of the valve seat (11) corresponding to the regulating groove (17), and a through hole 2 (18) is provided at the other end of the valve seat (11) corresponding to the regulating groove (17).

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